Mystery observation tower plans leave city of Denver puzzled

A proposed 673-foot spiral observation tower has sparked debate in downtown Denver, with concept plans showing a twisting structure capped with an orb that could dramatically reshape the city's skyline, as reported by local news outlets.

673-foot Spiral Tower Proposal

The proposed 673-foot spiral observation tower would become Denver's fourth-tallest building, trailing only Republic Plaza (714 feet), 1801 California St. (709 feet), and the Wells Fargo Center, known locally as the "Cash Register Building" (698 feet). If built, the structure would rival iconic landmarks like Seattle's Space Needle (605 feet) and Dallas' Reunion Tower (561 feet). The tower would be located at 1546 California St., less than a block from 16th Street Mall, on what is currently a parking lot.98.5 KYGO+2

Plans submitted by developer Ephraim LLC outline a sculptural, lattice-wrapped spire topped with an orb. While specific details remain limited, some speculate the design may feature enclosed passenger pods that spiral up the exterior, functioning more like a vertical observation wheel than a traditional observation deck. The project faces additional scrutiny as the site is within a designated historic district, requiring approval from the city's Landmark Preservation office before any permits can be issued. Public reaction has been mixed, with many Reddit users expressing enthusiasm for a unique downtown attraction that could become a significant landmark for the city.The Business Journals+3

Downtown Denver Skyline Impact

The proposed spiral tower would significantly transform Denver's skyline, which hasn't seen a landmark of this magnitude in decades. Unlike the city's existing skyscrapers, this observation tower is designed specifically as a tourist attraction rather than an office or residential building. Local residents have noted that Denver "needs a observation deck with full mountain views" that would showcase panoramic vistas of both the urban landscape and the Rocky Mountains beyond.Axios

Tourism experts suggest such a tower could become an economic catalyst for downtown Denver. As one commenter observed, "Denver needs a reason for tourists to come downtown instead of bypassing it and going straight to the mountains. A tower would be a huge economic boom to downtown Denver." The structure's unique spiral design with potential LED lighting features could create an iconic nighttime presence, with some residents hoping it might "sparkle, change color, etc." that would make it instantly recognizable. If approved, this project would join a growing trend of observation towers serving as city identifiers, similar to how the Space Needle has become synonymous with Seattle's identity.98.5 KYGO+1

Observation Deck Economics

Tourism-focused attractions like observation decks can generate substantial economic benefits for cities. The proposed Denver tower would likely follow successful models seen elsewhere, where such attractions serve as economic engines. In New York City, for example, the tourism industry generated $74 billion in economic impact in 2023, with iconic observation experiences playing a key role in attracting visitors. These attractions not only create direct revenue through ticket sales but also stimulate spending in surrounding businesses.McKinsey & Company+1

Observation decks typically deliver value beyond just views, functioning as immersive experiences that drive visitor engagement and spending. The global travel and tourism sector contributed approximately $10.9 trillion to the global economy in 2024, representing 10% of global GDP and supporting 357 million jobs worldwide. For Denver specifically, a signature observation tower could become a catalyst for downtown revitalization, potentially creating hundreds of jobs while generating millions in tax revenue. As seen with national parks and other attractions, visitors spend money that circulates through regional economies, creating employment opportunities and stimulating growth in nearby communities.© Electrosonic, Inc.+2

Reactions to plans

Public reaction to the proposed spiral tower has been notably mixed across social media platforms. On Reddit, many Denver residents expressed enthusiasm for the project, with one user commenting that the tower would be "fantastic for visitors to enjoy the scenery, an affordable option for a first date, and it would give us a significant landmark." Another supporter emphasized that while housing and business development remain important, incorporating "there for the sake of cool" structures is "the secret sauce of good cities."98.5 KYGO

Critics, however, have questioned the design aesthetics, with some comparing it to the "Eye of Sauron" or describing it as resembling "a tube from holiday wrapping paper adorned with festive lights." Others raised concerns about the tower's location, suggesting it might be better positioned to showcase both mountain and city views. Despite these criticisms, many Denverites appear to welcome the potential addition to their skyline, seeing it as an opportunity to create a distinctive landmark that could help revitalize the 16th Street area and attract visitors downtown.98.5 KYGO